Cleaver-Brooks | Products & Solutions | Water Systems | Water Treatment | Dealkalizers


Models CDAS and CDAF

  • Steam and Hot Water Applications
  • Sized from 10,000 to 980,000 grains capacity
  • Flow rates from 10 to 300 gpm
  • Tank sizes range from 9" to 72"
  • Compatible with all boiler applications

Dealkalizers can remove more than 90% of the bicarbonate alkalinity in a softened water supply.  This controls formation of carbon dioxide in the boiler, the major cause of condensate line corrosion.  

Dealkalization reduces the need for neutralizing chemicals by as much as 90% and cuts fuel cost by minimizing blowdown.

The model CDAS is designed for larger industrial boiler-feed applications.  It features twin tanks, alternating or parallel systems including carbon steel resin tanks, strong base anion resin, diaphram-style control valves, inlet/outlet sampling valves, galvanized steel face piping, brine tank and caustic injection system.

The model CDAF chloride-cycle dealkalizer system reduces incoming alkalinity in feed water resulting in lower blowdown rates, lower condensate return corrosion and a more effective chemical treatment program for boiler systems.


  • Pipe sizes 3/4", 1", 1 1/2", 2", 3" and 4" NPT 
  • Water meter initiated regeneration
  • Skid mounted option


  • Process Steam
  • Industrial Process
  • Building Heat
  • Sterilization
  • Humidification
  • Waste Heat Recovery
  • Hospital and Healthcare
  • Power and Utilities
  • Refineries and Petrochemical
  • Laundry and Dry Cleaning

Featured Product

Blowdown Heat Recovery

Recover 90% of heat lost during blowdown

Case Study

Properly Treat Boiler Water for Efficient Long-Term Operation

To ensure a boiler runs properly over the course of its lifetime, treating the water that circulates within the system is mandatory. If the water is not treated properly, the boiler will begin to have problems within the first year, and its useful life will be significantly shortened. Boiler symptoms resulting from untreated water include overheating, failure to produce hot water or steam, a drop in the boiler flow rate and an overall loss of efficiency.